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radar
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Learn how a radar works
principle of radar operation pulse waveform transmitted by radar parts of a radar system radar antennas ASR-9 airport surveillance radar AN/APG-66 radar in an F-16 fighter aircraft refraction of HF radar radiation by the ionosphere hook echo Waveguide
For Students
Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
radar summary
Quizzes
Yellow transportation sign with ASAP (as soon as possible) on violet color sky background. (acronyms)
Figure Out the Acronyms ASAP Vocabulary Quiz
Armed Forces Radio Services broadcaster Jack Brown interviews Humphrey Bogart and Lauren Bacall for broadcast to troops overseas during World War II.
Communications Firsts Quiz
Discover
Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet
10 Failed Doomsday Predictions
All Saints Day. All Souls Day. Candles in cemetery in Poland on All Saints Day, November 1. All Souls Day, November 2. Christian church, All Hallows, Solemnity of All Saints, Feast of All Saints, purgatory, Roman Catholic church
7 Unique Burial Rituals Across the World
Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.
7 Deadliest Weapons in History
Statue of Nostradamus
Nostradamus and His Prophecies
July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
Will Light-Speed Space Travel Ever Be Possible?
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)
All 119 References in “We Didn’t Start the Fire,” Explained

radar: Related Content

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Photos and Videos

principle of radar operation
pulse waveform transmitted by radar
parts of a radar system
radar antennas
ASR-9 airport surveillance radar
AN/APG-66 radar in an F-16 fighter aircraft
refraction of HF radar radiation by the ionosphere
hook echo
Waveguide
Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
Learn how a radar works
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Key People

Luis Alvarez
Luis Alvarez
American physicist
William Webster Hansen
American physicist
Watson-Watt, Sir Robert
Sir Robert Alexander Watson-Watt
British physicist
Frederick Emmons Terman
American engineer
Albert Hoyt Taylor
American physicist and radio engineer
Sir Arthur Percy Morris Fleming
British engineer
Sir Frederic Williams
British engineer
Robert H. Dicke
American physicist
Page, Robert Morris
Robert Morris Page
American physicist
Robert Hanbury Brown
British astronomer
James Brown Fisk
American physicist

Related Quizzes and Features

Quiz
Yellow transportation sign with ASAP (as soon as possible) on violet color sky background. (acronyms)
Figure Out the Acronyms ASAP Vocabulary Quiz
Armed Forces Radio Services broadcaster Jack Brown interviews Humphrey Bogart and Lauren Bacall for broadcast to troops overseas during World War II.
Communications Firsts Quiz